According to XDA contributor Aayushya, Android 6.0.1 Marshmallow OrionOS v2.2 ROM is available for AT&T LG G3 D850. OrionOS 2.2 will let D850 owners taste the gloriousness of Marshmallow 6.0.1 on AT&T G3 D850. Androidbiits.com has recently posted the step-by-step tutorial for installing Marshmallow 6.0.1 AOKP on Samsung Galaxy Grand 2 SM-G7102. The spectacular news is that AT&T G3 D850 owners can now install OrionOS 2.2 on D850. Isn’t it spectacular? Androidbiits.com will post the steps to install Android 6.0.1 Marshmallow OrionOS 2.2 on AT&T LG G3 D850. Oh yes, you may face issue on AT&T G3 D850 as OrionOS 2.2 is in a beta stage. OrionOS v2.1 is also available for AT&T LG G3 D850.

It is expected that AT&T G3 D850 owners will be able to install Marshmallow 6.0.1 OrionOS 2.2 on D850 practically without having difficulty after reading the tutorial written in Androidbiits.com. OrionOS 2.2 requires rooted AT&T G3 D850, so it is essential to root D850 before installing OrionOS 2.2 on D850. If you haven’t rooted D850, then you must root it to enjoy OrionOS 2.2. Dear D850 owner, it is essential to install TWRP 2.8.7.0 on AT&T G3 D850 to taste OrionOS 2.2. Oh yes, the users of D850 can install OrionOS 2.2 only after unlocking AT&T G3 D850 bootloader.

If you aren’t happy with old firmware, then you must install OrionOS 2.2 on D850. The vital thing is that OrionOS 2.2 will let you enjoy Marshmallow 6.0.1 on D850. Androidbiits.com recommends that AT&T G3 D850 owners must save their private documents before installing OrionOS 2.2 as there is a possibility of data loss from D850.

Below are the steps using which you can install Marshmallow 6.0.1 OrionOS 2.2 on D850. Androidbiits.com won’t take responsibility if D850 got harmed during the installation of OrionOS 2.2. AT&T G3 D850 battery must be above 87 percentage before following this tutorial.

2. It is the time to activate USB debugging and attach AT&T G3 D850 with desktop.

3. It is essential to transfer OrionOS v2.2 to D850.

4. It is the time to power off D850 and remove the USB cable.

5. It is essential to put AT&T G3 D850 into Recovery Mode.

6. It is essential to tap “wipe data/factory reset” on D850.

7. It is the time to tap “wipe cache partition” on D850.

8. It is essential to click “install zip from SD card” on D850.

9. It is the time to choose OrionOS v2.2 on your D850.

10. It is essential to install OrionOS v2.2 on AT&T LG G3 D850.

11. It is the time to go to the main menu on AT&T G3 D850 and click “reboot system now” option.

12. It is essential to wait until D850 restarts.

13. You can install GApps on D850 using the above steps.

After your AT&T G3 D850 is rebooted, you can taste Android 6.0.1 Marshmallow OrionOS 2.2 on D850. Isn’t it stunning? If you are facing issue during the installation of OrionOS 2.2 on AT&T G3 D850, then don’t hesitate to share your issue with Androidbiits.com.